3 years ago

What is the vertex of angle 4 in this diagram?

Mathematics

1 answer:

mamaluj [8]3 years ago

5 0

The vertex would be C. The angle is angle DCB or angle BCD

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Tony wants to purchase a baseball glove for $14.96, a baseball bat for $19.87, and a baseball for $5.37. He figured out that he

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Reasonable because the three items altogether cost about $40

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3 years ago

What is the average (arithmetic mean) of the first 90 measurements in a certain list of 92 measurements? (1) the average of the

marishachu [46]

The sum of all the measurements is just the average times the number.

$\bar x = \frac{1}{n} \sum_{i=1}^n x_i$

$\sum_{i=1}^n x_i = n \bar x$

So if the average of all 92 is 7 the sum of those is $92 \times 7$

The average of the last two is 7.2 so their sum is $2 \times 7.2$

That means the sum of the first 90 is $92 \times 7 - 2 \times 7.2$

so the average of the first 90 is

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2 years ago

A function of the form f(x)=mc+b, where m and b are real numbers is called a ____ function ?

FrozenT [24]

You mean f(x) = my+ b
This is called slope

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2 years ago

If f(x) = x + 8 and g(x) = -4x - 3, find (f+ g)(x).

anzhelika [568]

Answer:

-3x + 5.

Step-by-step explanation:

(f + g)(x) = x + 8 - 4x - 3

= -3x + 5.

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3 years ago

A3 + a + a2 + 5 + 7a2 + 4a - 8a2 - 6 =

mamaluj [8]

Answer:

3 + 5 − 1

explination

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2 years ago